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Math 103 Review 1

A subgroup that is representative of a population is called
Sample
Category
Data
The ratio scale of measurement
Is usually based on counting
Has a meaningful zero point
Cannot assume negative values
Usually involves ranking
Two types of statistical variables are
Categorical and numerical
Categorical and descriptive
Descriptive and numerical
You are interested in how stress affects heart rate in humans. Your dependent variable would be the
Humans
Interest
Stress
Heart Rate
The entire group of interest for a statistical conclusion is called the
Data
Population
Sample
Which of the following statements is true regarding a sample
It is a part of population
It refers to descriptive statistics
It must contain at least five observations
All of the above are correct
The ordinal scale of measurement
Has a meaningful zero point
Is based on ranks
Cannot assume negative values
All of the above
Which of the following are examples of continuous variables
Birth weight of babies
Distance between tollbooths on the new jersey turnpike
Age of the CEOs of the Fortune 500 companies
All of the above
Statistical inference
The process of estimations and conclusions carefully based on data from an entire population
Pictorial design that summarizes data
The process of estimation and conclusions carefully based on data from a sample
A qualitative variable
Always refers to a sample
Is not numeric
Has only two possibe outcomes
All of the above are correct
You are conducting a survey of the people of the Philippines to find out how many of them have laptops. You randomly choose to call, and make 1000 phone calls to people scattered across the country. In this study, what is the statistics term for THE PEOPLE IN THE PHILIPPINES, and what is the statistics term for THE PEOPLE YOU CALLED
Both are Populations
Both are Samples
People of the Philippines are the POPULATION, people you called are SAMPLE
People of the Philippines are the SAMPLE, people you called are POPULATION
In descriptive statistics our main objective is to
Compute an average
Infer something about the population
Describe the data we collected
Describe the population
Numerical and pictorial information about variables are called
Analytical statistics
Descriptive statistics
Inferential statistics
Gender is classified as
Nominal
Ordinal
Interval
Ratio
Age is classified as
Nominal
Ordinal
Ratio
Interval
Which of these is an example of a categorical variable?
Flavor of a soft drink ordered by each customer at a fast food restaurant
Height measured in inches, for each student in a class
Points scored by each player on a team
Which of the following statements is true regarding a population
It must be a large number of values
It must refer to people
It is a collection of individuals, objects, or measurements
None of the above
Which of the following used inferential statistics
Nine out of ten on-the-job fatalities are men
By 2043 at least 3-5 billion people will run short of water
Expenditures for the cable industry were $5.66 billion in 1996
The median household income for people aged 25-34 is $35,888
You are conducting a study to see whether a new experimental medication will cause bald men to grow hair. You divide the patients into 2 groups. To one group you give the medication. To the other group, you give a placebo. In this study, the correct terrms for aking of the medication and the growth of hair are the following
Medication -independent, hair growth -dependent
Both are independent
Both are dependent
Medication - dependent, hair growth - independent
The science of statistics includes which of the following
Organizing data
Presenting data
Interpreting data
All of the above
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มƒฅแƒฃแƒ˜แƒ–แƒ˜ แƒ’แƒแƒ™แƒ”แƒ—แƒ”แƒ‘แƒฃแƒšแƒ˜แƒ „แƒกแƒแƒ›แƒแƒฅแƒแƒšแƒแƒฅแƒ แƒกแƒแƒ–แƒแƒ’แƒแƒ“แƒแƒ”แƒ‘แƒ˜แƒก แƒ’แƒแƒœแƒ•แƒ˜แƒ—แƒแƒ แƒ”แƒ‘แƒ˜แƒก แƒชแƒ”แƒœแƒขแƒ แƒ˜แƒก“ แƒขแƒ แƒแƒœแƒ–แƒ˜แƒขแƒฃแƒšแƒ˜ แƒกแƒแƒ’แƒœแƒ›แƒแƒœแƒแƒ—แƒšแƒ”แƒ‘แƒšแƒ แƒžแƒ แƒแƒ’แƒ แƒแƒ›แƒ˜แƒก แƒคแƒแƒ แƒ’แƒšแƒ”แƒ‘แƒจแƒ˜ แƒแƒ•แƒขแƒแƒ แƒ˜: แƒขแƒ แƒ”แƒœแƒ”แƒ แƒ˜ -  แƒ”แƒšแƒ–แƒ แƒฎแƒฃแƒฎแƒฃแƒœแƒแƒ˜แƒจแƒ•แƒ˜แƒšแƒ˜ „แƒ‘แƒฃแƒšแƒ˜แƒœแƒ’แƒ˜“       แƒ‘แƒฃแƒšแƒ˜แƒœแƒ’แƒ˜ แƒแƒฆแƒœแƒ˜แƒจแƒœแƒแƒ•แƒก แƒจแƒ”แƒฃแƒ แƒแƒชแƒฎแƒงแƒแƒคแƒ˜แƒก แƒ›แƒ˜แƒงแƒ”แƒœแƒ”แƒ‘แƒแƒก, แƒ’แƒแƒ แƒ˜แƒงแƒ•แƒแƒก, แƒจแƒ”แƒจแƒ˜แƒœแƒ”แƒ‘แƒแƒก, แƒคแƒ˜แƒ–แƒ˜แƒ™แƒฃแƒ  แƒ“แƒ แƒคแƒกแƒ˜แƒฅแƒแƒšแƒแƒ’แƒ˜แƒฃแƒ  แƒ“แƒ”แƒ•แƒœแƒแƒก, แƒ˜แƒ› แƒ›แƒ˜แƒ–แƒœแƒ˜แƒ— แƒ แƒแƒ› แƒ’แƒแƒ›แƒแƒ˜แƒฌแƒ•แƒ˜แƒแƒก แƒกแƒฎแƒ•แƒ แƒแƒ“แƒแƒ›แƒ˜แƒแƒœแƒจแƒ˜ แƒจแƒ˜แƒจแƒ˜ แƒ“แƒ แƒ›แƒแƒ แƒฉแƒ˜แƒšแƒ”แƒ‘แƒ แƒ˜แƒ’แƒ˜ แƒฎแƒแƒ แƒชแƒ˜แƒ”แƒšแƒ“แƒ”แƒ‘แƒ แƒกแƒ™แƒแƒšแƒแƒจแƒ˜ แƒ“แƒ แƒ›แƒ˜แƒก แƒ’แƒแƒ แƒ”แƒ—.                   แƒแƒ แƒกแƒ”แƒ‘แƒแƒ‘แƒก แƒ‘แƒฃแƒšแƒ˜แƒœแƒ’แƒ˜แƒก แƒกแƒฎแƒ•แƒ“แƒแƒกแƒฎแƒ•แƒ แƒกแƒแƒฎแƒ”แƒ”แƒ‘แƒ˜: แƒคแƒ˜แƒ–แƒ˜แƒ™แƒฃแƒ แƒ˜, แƒคแƒกแƒ˜แƒฅแƒแƒšแƒแƒ’แƒ˜แƒฃแƒ แƒ˜, แƒ•แƒ”แƒ แƒ‘แƒแƒšแƒฃแƒ แƒ˜, แƒ™แƒ˜แƒ‘แƒ”แƒ แƒ‘แƒฃแƒšแƒ˜แƒœแƒ’แƒ˜. แƒคแƒ˜แƒ–แƒ˜แƒ™แƒฃแƒ แƒ˜ แƒ‘แƒฃแƒšแƒ˜แƒœแƒ’แƒ˜ แƒ’แƒฃแƒšแƒ˜แƒกแƒฎแƒ›แƒแƒ‘แƒก แƒคแƒ˜แƒ–แƒ˜แƒ™แƒฃแƒ  แƒ—แƒแƒ•แƒ“แƒแƒกแƒฎแƒ›แƒแƒก แƒแƒœ แƒจแƒ”แƒฃแƒ แƒแƒชแƒฎแƒงแƒแƒคแƒแƒก. แƒ แƒแƒ˜แƒ›แƒ” แƒฅแƒแƒœแƒ”แƒ‘แƒ˜แƒก แƒ’แƒแƒœแƒแƒ“แƒ’แƒฃแƒ แƒ”แƒ‘แƒแƒก แƒแƒœ แƒ›แƒแƒžแƒแƒ แƒ•แƒแƒก.                 แƒ•แƒ”แƒšแƒ‘แƒแƒ แƒฃแƒšแƒ˜ แƒ‘แƒฃแƒšแƒ˜แƒœแƒ’แƒ˜ แƒ’แƒฃแƒšแƒ˜แƒกแƒฎแƒ›แƒแƒ‘แƒก แƒกแƒ˜แƒขแƒงแƒ•แƒ˜แƒ”แƒ  แƒจแƒ”แƒฃแƒ แƒแƒชแƒฎแƒงแƒแƒคแƒแƒก, แƒ แƒแƒ›แƒ”แƒšแƒ˜แƒช แƒ“แƒแƒ™แƒแƒ•แƒจแƒ˜แƒ แƒ”แƒ‘แƒฃแƒšแƒ˜แƒ แƒ แƒ”แƒšแƒ˜แƒ’แƒ˜แƒแƒกแƒ—แƒแƒœ, แƒกแƒฅแƒ”แƒกแƒ—แƒแƒœ, แƒ”แƒ แƒแƒ•แƒœแƒ”แƒ‘แƒแƒกแƒ—แƒแƒœ. แƒ•แƒ”แƒ แƒ‘แƒแƒšแƒฃแƒ แƒ˜ แƒ‘แƒฃแƒšแƒ˜แƒœแƒ’แƒ˜ แƒแƒ แƒ˜แƒก แƒงแƒ•แƒ”แƒšแƒแƒ–แƒ” แƒ’แƒแƒ•แƒ แƒชแƒ”แƒšแƒ”แƒ‘แƒฃแƒšแƒ˜ แƒคแƒแƒ แƒ›แƒ. แƒแƒ› แƒจแƒ”แƒ›แƒ—แƒฎแƒ•แƒ”แƒ•แƒแƒจแƒ˜ แƒ‘แƒแƒ•แƒจแƒ•แƒ˜แƒก แƒ“แƒแƒ›แƒชแƒ˜แƒ แƒ”แƒ‘แƒแƒก แƒ“แƒ แƒ›แƒแƒกแƒ–แƒ” แƒซแƒแƒšแƒแƒ“แƒแƒ‘แƒแƒก แƒแƒฅแƒ•แƒก แƒ•แƒ”แƒ แƒ‘แƒแƒšแƒฃแƒ แƒ˜ แƒฎแƒแƒกแƒ˜แƒแƒ—แƒ˜. แƒ›แƒ˜แƒกแƒ˜ แƒคแƒแƒ แƒ›แƒ”แƒ‘แƒ˜แƒ: แƒ“แƒแƒชแƒ˜แƒœแƒ•แƒ, แƒจแƒ”แƒฃแƒ แƒแƒชแƒฎแƒงแƒแƒคแƒ, แƒฆแƒ˜แƒ แƒ”แƒกแƒ”แƒ‘แƒ˜แƒก แƒจแƒ”แƒšแƒแƒฎแƒ•แƒ, แƒ“แƒแƒจแƒ˜แƒœแƒ”แƒ‘แƒ.                             แƒแƒ แƒแƒžแƒ˜แƒ แƒ“แƒแƒžแƒ˜แƒ แƒ˜ แƒ‘แƒฃแƒšแƒ˜แƒœแƒ’แƒ˜ แƒ’แƒฃแƒšแƒกแƒ˜แƒฎแƒ›แƒแƒ‘แƒก แƒ˜แƒœแƒคแƒแƒ แƒ›แƒแƒชแƒ˜แƒ˜แƒก แƒญแƒแƒ แƒ˜แƒก แƒ’แƒแƒ•แƒ แƒชแƒ”แƒšแƒ”แƒ‘แƒแƒก, แƒแƒ“แƒแƒ›แƒ˜แƒแƒœแƒ˜แƒก แƒ–แƒฃแƒ แƒ’แƒก แƒฃแƒ™แƒแƒœ.           แƒ™แƒ˜แƒ‘แƒ”แƒ  แƒ‘แƒฃแƒšแƒ˜แƒœแƒ’แƒ˜ แƒ’แƒฃแƒšแƒ˜แƒกแƒฎแƒ›แƒแƒ‘แƒก แƒขแƒ”แƒฅแƒกแƒขแƒฃแƒ แƒ˜ แƒ’แƒ–แƒแƒ•แƒœแƒ˜แƒšแƒ”แƒ‘แƒ˜แƒก, แƒกแƒฃแƒ แƒแƒ—แƒ”แƒ‘แƒ˜แƒก, แƒกแƒแƒชแƒ˜แƒแƒšแƒฃแƒ แƒ˜ แƒฅแƒกแƒ”แƒšแƒ˜แƒก แƒกแƒแƒจแƒฃแƒแƒšแƒ”แƒ‘แƒ˜แƒ— แƒ‘แƒฃแƒšแƒ˜แƒœแƒ’แƒก.                แƒ‘แƒฃแƒšแƒ˜แƒœแƒ’แƒ˜แƒก แƒจแƒ”แƒ“แƒ”แƒ’แƒ˜: แƒ‘แƒฃแƒšแƒ˜แƒœแƒ’แƒ˜แƒก แƒ›แƒกแƒฎแƒ•แƒ”แƒ แƒžแƒšแƒ˜ - แƒ›แƒแƒ–แƒแƒ แƒ“แƒ”แƒ‘แƒ˜ แƒ’แƒแƒœแƒ˜แƒชแƒ“แƒ˜แƒแƒœ แƒจแƒ˜แƒจแƒก  แƒ“แƒ แƒ“แƒแƒ–แƒแƒ‘แƒฃแƒšแƒแƒ‘แƒแƒก แƒ—แƒแƒœแƒแƒขแƒแƒšแƒ”แƒ‘แƒ˜แƒก แƒ“แƒแƒœแƒแƒฎแƒ•แƒ˜แƒกแƒแƒก, แƒแƒฎแƒแƒกแƒ˜แƒแƒขแƒ”แƒ‘แƒ— แƒแƒ’แƒ–แƒœแƒ”แƒ‘แƒแƒ“แƒแƒ‘แƒ แƒ“แƒแƒ แƒ“แƒ˜ แƒฌแƒฃแƒฎแƒ˜แƒšแƒ˜ แƒ“แƒ  แƒ’แƒแƒœแƒฌแƒงแƒแƒ‘แƒ˜แƒก แƒฎแƒจแƒ˜แƒ แƒ˜ แƒชแƒ•แƒšแƒ˜แƒšแƒ”แƒ‘แƒ. แƒ‘แƒแƒ•แƒจแƒ•แƒ˜ แƒแƒ’แƒ แƒ”แƒกแƒแƒ แƒ˜ - แƒ›แƒฃแƒ“แƒ›แƒ˜แƒ•แƒแƒ“ แƒชแƒ“แƒ˜แƒšแƒแƒ‘แƒก แƒซแƒšแƒ˜แƒ”แƒ แƒแƒ“ แƒ’แƒแƒ›แƒแƒ˜แƒงแƒฃแƒ แƒ”แƒ‘แƒแƒ“แƒ”แƒก. แƒฎแƒจแƒ˜แƒ แƒแƒ“  แƒ”แƒฃแƒฎแƒ”แƒจแƒ”แƒ‘แƒ แƒ›แƒแƒกแƒฌแƒแƒ•แƒšแƒ”แƒ‘แƒ”แƒšแƒก, แƒ›แƒจแƒแƒ‘แƒ”แƒšแƒก แƒ“แƒ แƒ—แƒแƒœแƒแƒขแƒแƒšแƒ”แƒ‘แƒก. แƒแƒฎแƒ“แƒ”แƒœแƒก แƒ–แƒแƒšแƒ˜แƒก แƒ“แƒ”แƒ›แƒแƒœแƒกแƒขแƒ แƒ˜แƒ แƒ”แƒ‘แƒแƒก แƒกแƒชแƒ”แƒ›แƒก แƒ“แƒ แƒชแƒฃแƒ“แƒ˜ แƒกแƒ˜แƒขแƒงแƒ•แƒ”แƒ‘แƒ˜แƒ— แƒ›แƒแƒ˜แƒฎแƒกแƒ”แƒœแƒ˜แƒ”แƒ‘แƒก แƒ’แƒแƒ แƒจแƒ”แƒ›แƒแƒ›แƒงแƒแƒคแƒ”แƒ‘แƒก.          
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